Horizontal auxiliary device for CT (Computed Tomography)

Abstract

The utility model discloses a horizontal CT auxiliary device which comprises a fixing frame and a CT instrument, an installation frame is fixedly installed on the fixing frame, two sets of symmetrically-distributed installation frames are installed on the fixing frame in a sliding mode, a feeding frame is installed on the fixing frame in a sliding mode, a plurality of sets of limiting frames distributed at equal intervals are arranged in the installation frames, and the CT instrument is installed on the CT instrument. Limiting plates are rotationally mounted on the multiple sets of limiting frames correspondingly, four sets of symmetrically-distributed limiting rods are arranged in the mounting frame, and four sets of symmetrically-distributed bearing blocks are arranged in the feeding frame. The four sets of symmetrically-distributed limiting rods in the mounting frame are matched with the two sets of symmetrically-distributed mounting frames and limiting frames and limiting plates which are distributed on the mounting frames at equal intervals, so that materials waiting for CT detection are stacked and stored, and the materials are automatically pushed in cooperation with rotation of the limiting plates and four sets of symmetrically-distributed bearing blocks on the feeding frame; and after the materials are pushed into the CT instrument to be detected, automatic discharging of the materials is achieved through synchronous outward movement of the four sets of bearing blocks.

Description

Technical Field

[0001] This utility model relates to the field of industrial horizontal CT technology, specifically to an auxiliary device for horizontal CT. Background Technology

[0002] Industrial CT refers to nuclear imaging technology applied in industry. Its basic principle is based on the attenuation and absorption characteristics of radiation in the object being inspected. The ability of a substance to absorb radiation is related to the properties of the substance. Therefore, by utilizing the attenuation law and distribution of X-rays or gamma rays with a certain energy and intensity emitted by radioactive nuclides or other radiation sources in the object being inspected, it is possible to obtain detailed information about the interior of the object by a detector array. Finally, computer information processing and image reconstruction technology are used to display the image in the form of an image. For example, CT scanning of new energy batteries can realize the detection of internal defects in the battery, ensuring the quality and safety of the battery. At present, the auxiliary devices of industrial horizontal CT are mainly used to support, position and fix the workpiece or equipment being inspected to improve scanning accuracy, efficiency and safety.

[0003] In the existing technology, the auxiliary device for horizontal CT requires manual loading and fixing by the staff, and manual unloading after the CT examination is completed. This is highly dependent on manual labor, has a low degree of automation, and therefore has low work efficiency. In addition, the long-term exposure to residual radiation during manual loading and unloading can also have adverse effects on the human body. Therefore, we propose an auxiliary device for horizontal CT to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for horizontal CT scans to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for horizontal CT scanners, comprising a mounting frame and a CT scanner. A mounting frame is fixedly mounted on the mounting frame. Two sets of symmetrically distributed mounting brackets are slidably mounted on the mounting frame. A feeding frame is slidably mounted on the mounting frame, with the feeding brackets corresponding to the mounting frame and the CT scanner. Two sets of symmetrically distributed first lead screws are rotatably mounted on the mounting frame. The two sets of first lead screws pass through the two sets of mounting brackets and are threadedly connected to the corresponding mounting brackets. Multiple sets of equidistantly distributed limiting brackets are provided within the mounting frame. Each of the mounting frames has a rotatable limit plate with a gear sleeved on it. A rack is slidably installed inside the limit frame and meshes with the gear. A cylinder is fixedly installed inside the limit frame, and the rack is fixedly connected to the output end of the cylinder piston rod. The mounting frame has four sets of symmetrically distributed limit rods, and the feeding frame has four sets of symmetrically distributed receiving blocks, which are respectively distributed corresponding to the limit rods. Two sets of symmetrically distributed second lead screws are rotatably installed on the fixed frame, and the two sets of second lead screws pass through both sides of the feeding frame and are threadedly connected to the feeding frame.

[0006] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first adjusting rods are slidably installed within the mounting frame, and two sets of symmetrically distributed second adjusting rods are slidably installed within the mounting frame. The two sets of first adjusting rods and second adjusting rods are perpendicularly distributed, and the four sets of limiting rods are slidably connected to one set of first adjusting rods and one set of second adjusting rods, respectively.

[0007] As a further preferred embodiment of this technical solution, a first double-rod cylinder is provided between each of the two sets of first adjusting rods and second adjusting rods, and the two sets of first adjusting rods and second adjusting rods are respectively fixedly connected to the output end of the piston rod of the corresponding first double-rod cylinder.

[0008] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first clamping rods are slidably installed inside the feeding rack, and two sets of symmetrically distributed second clamping rods are slidably installed inside the feeding rack. The second clamping rods are perpendicular to the first clamping rods. The four sets of receiving blocks are slidably connected to one set of first clamping rods and one set of second clamping rods, respectively. A second double-rod cylinder is provided between each set of first clamping rods and second clamping rods. The first clamping rods and second clamping rods are respectively fixedly connected to the output end of the piston rod of the second double-rod cylinder.

[0009] As a further preferred embodiment of this technical solution, a mounting rod is fixedly installed inside the mounting frame. Two sets of symmetrically distributed first sliding rods are slidably installed inside the mounting rod. A second sliding rod is slidably installed inside each of the two sets of first sliding rods. The ends of the two sets of second sliding rods away from the mounting rod are respectively fixedly connected to two sets of limiting frames located on both sides. Two sets of intersecting first connecting rods and two sets of intersecting second connecting rods are provided between each pair of adjacent limiting frames. A slider is rotatably installed on the left end of each of the two sets of first connecting rods. The sliders are slidably connected to the corresponding limiting frames. The right ends of each of the two sets of first connecting rods are rotatably connected via a rotating shaft. The left ends of each of the two sets of second connecting rods are rotatably connected via a rotating shaft. The right ends of each of the two sets of second connecting rods are rotatably connected to the corresponding limiting frames via a rotating shaft. The corresponding first connecting rods and second connecting rods are rotatably connected via a rotating shaft.

[0010] As a further preferred embodiment of this technical solution, a bidirectional screw is rotatably installed inside the mounting rod, and a screw tube is rotatably installed inside each of the two sets of first slide rods. The two ends of the bidirectional screw pass through the two sets of first slide rods respectively and are threadedly connected to the two sets of first slide rods respectively. The two sets of screw tubes pass through the two sets of second slide rods respectively and are threadedly connected to the second slide rods.

[0011] As a further preferred embodiment of this technical solution, the bidirectional screw is provided with two sets of symmetrically distributed keyways, and each set of the solenoids is provided with two sets of symmetrically distributed key blocks. The key blocks are correspondingly arranged with the keyways, and the two sets of solenoids are slidably connected to the bidirectional screw through the key blocks.

[0012] This utility model provides an auxiliary device for horizontal CT scans, which has the following beneficial effects:

[0013] (1) This utility model uses four sets of symmetrically distributed limiting rods in the installation frame, two sets of symmetrically distributed mounting frames, and equidistantly distributed limiting frames and rotatably mounted limiting plates on the mounting frames to achieve the accumulation and storage of materials waiting for CT detection. With the rotation of the limiting plates and the four sets of symmetrically distributed receiving blocks on the feeding frame, the materials are automatically pushed. After the materials are pushed into the CT scanner and the detection is completed, the materials are automatically discharged through the synchronous outward movement of the four sets of receiving blocks. This automatic feeding and discharging method reduces the dependence on manual labor when using the CT scanner, improves work efficiency, and reduces the time that the manual labor is in close contact with the CT scanner.

[0014] (2) This utility model achieves the adjustment of the distance between the four sets of limiting rods by using the first adjusting rod in conjunction with the second adjusting rod. It achieves the adjustment of the distance between multiple sets of limiting frames by using the sliding of the first sliding rod and the second sliding rod, as well as the two sets of first connecting rods and two sets of second connecting rods that are distributed in a cross manner. It achieves the adjustment of the distance between the four sets of receiving blocks by using the first clamping rod and the second clamping rod. This makes the auxiliary device applicable to the automatic stacking, feeding and unloading of various types of materials, thus expanding the applicability of the auxiliary device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural separation of the fixing frame and the mounting frame of this utility model;

[0017] Figure 3 This is a schematic diagram showing the structural separation of the mounting bracket and the limiting bracket of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 This is a schematic diagram showing the structural separation of the mounting frame and the limiting rod of this utility model;

[0020] Figure 6 This is a schematic diagram showing the structural separation of the feeding rack and the receiving block of this utility model;

[0021] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at point -B;

[0022] In the diagram: 1. Fixture; 2. CT scanner; 3. Mounting frame; 4. Mounting bracket; 5. First lead screw; 6. Mounting rod; 7. First slide rod; 8. Second slide rod; 9. Bidirectional screw; 10. Keyway; 11. Screw tube; 12. Key block; 13. Limiting frame; 14. First connecting rod; 15. Slider; 16. Second connecting rod; 17. Limiting plate; 18. Gear; 19. Rack; 20. Cylinder; 21. Limiting rod; 22. First adjusting rod; 23. Second adjusting rod; 24. First double-rod cylinder; 25. Feeding rack; 26. Second lead screw; 27. Receiving block; 28. First locking rod; 29. ​​Second locking rod; 30. Second double-rod cylinder. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figures 1-7 As shown, in this embodiment, the auxiliary device for horizontal CT includes a fixed frame 1 and a CT scanner 2. A mounting frame 3 is fixedly mounted on the fixed frame 1. Two sets of symmetrically distributed mounting brackets 4 are slidably mounted on the fixed frame 1. A feeding rack 25 is slidably mounted on the fixed frame 1, corresponding to the mounting frame 3 and the CT scanner 2. Two sets of symmetrically distributed first lead screws 5 are rotatably mounted on the fixed frame 1. The two sets of first lead screws 5 pass through the two sets of mounting brackets 4 and are threadedly connected to the corresponding mounting brackets 4. Multiple sets of equidistantly distributed limiting brackets 13 are provided inside the mounting brackets 4. Limiting plates 17 are rotatably mounted on each of the multiple limiting brackets 13. A gear 18 is fitted into the frame. A rack 19 is slidably installed inside the limiting frame 13, meshing with the gear 18. A cylinder 20 is fixedly installed inside the limiting frame 13, with the rack 19 fixedly connected to the output end of the piston rod of the cylinder 20. Four sets of symmetrically distributed limiting rods 21 are provided inside the mounting frame 3. Four sets of symmetrically distributed receiving blocks 27 are provided inside the feeding frame 25, corresponding to the limiting rods 21. Two sets of symmetrically distributed second lead screws 26 are rotatably installed on the fixed frame 1, passing through both sides of the feeding frame 25 and threadedly connected to it. The material awaiting CT inspection is placed... The material is placed between four sets of limiting rods 21 under the mounting frame 3. Adjacent materials are separated by limiting frames 13 and limiting plates 17. When the feeding frame 25 is directly below the four sets of limiting rods 21, the four sets of receiving blocks 27 are distributed correspondingly to the four sets of limiting rods 21. The start of the cylinder 20 in the limiting frame 13 above the feeding frame 25 drives the rack 19 to slide, which, together with the gear 18, realizes the rotation of the limiting plate 17. When the two sets of limiting plates 17 rotate synchronously, the material above the limiting plate 17 loses external support and will fall directly onto the four sets of receiving blocks 27 of the feeding frame 25. The rotation of the second lead screw 26 in the fixing frame 1, together with the limiting action of the fixing frame 1, realizes the feeding. The feeding frame 25 drives the material to slide on the fixed frame 1, automatically completing the feeding of the material in the CT scanner 2. After the test is completed, the feeding frame 25 drives the material to leave the CT scanner 2, and the four sets of receiving blocks 27 move outward synchronously to complete the automatic discharge of the material. Then the feeding frame 25 returns to the position corresponding to the mounting frame 3. The two sets of mounting frames 4 slide down a certain distance synchronously on the fixed frame 1 to complete the smooth movement of the material located between the four sets of limiting rods 21 and above the multiple sets of limiting plates 17 so as to realize the next automatic feeding. The distance between the two sets of mounting frames 4 is wider than the length of the feeding frame 25, and the feeding frame 25 does not affect the movement of the mounting frame 4.

[0025] like Figures 3-7As shown, two sets of symmetrically distributed first adjusting rods 22 are slidably installed in the mounting frame 3, and two sets of symmetrically distributed second adjusting rods 23 are slidably installed in the mounting frame 3. The two sets of first adjusting rods 22 and second adjusting rods 23 are perpendicularly distributed. Four sets of limiting rods 21 are slidably connected to one set of first adjusting rods 22 and one set of second adjusting rods 23, respectively. A first double-rod cylinder 24 is provided between each set of first adjusting rods 22 and second adjusting rods 23. The two sets of first adjusting rods 22 and second adjusting rods 23 are respectively fixedly connected to the output end of the piston rod of the corresponding first double-rod cylinder 24. Two sets of symmetrically distributed first locking rods 28 are slidably installed in the feeding rack 25, and two sets of symmetrically distributed second locking rods 29 are slidably installed in the feeding rack 25. The second locking rods 29 and... The first locking rod 28 is vertically distributed. Four sets of receiving blocks 27 are slidably connected to one set of first locking rods 28 and one set of second locking rods 29, respectively. A second double-rod cylinder 30 is provided between each set of first locking rods 28 and second locking rods 29. The first locking rods 28 and second locking rods 29 are fixedly connected to the output end of the piston rod of the second double-rod cylinder 30, respectively. An installation rod 6 is fixedly installed inside the mounting bracket 4. Two sets of symmetrically distributed first sliding rods 7 are slidably installed inside the installation rod 6. A second sliding rod 8 is slidably installed inside each set of first sliding rods 7. The ends of the two sets of second sliding rods 8 away from the installation rod 6 are fixedly connected to two sets of limiting brackets 13 located on both sides. Two sets of intersecting first connecting rods 14 and two sets of intersecting second connecting rods 14 are provided between each pair of adjacent limiting brackets 13. Connecting rod 16, two sets of first connecting rods 14, each with a slider 15 rotatably mounted on its left end. The two sets of sliders 15 are slidably connected to their corresponding limiting frames 13. The right ends of the two sets of first connecting rods 14 are rotatably connected via a rotating shaft. The left ends of the two sets of second connecting rods 16 are rotatably connected via a rotating shaft, and the right ends of the two sets of second connecting rods 16 are rotatably connected to their corresponding limiting frames 13 via a rotating shaft. The corresponding first connecting rods 14 and second connecting rods 16 are rotatably connected via a rotating shaft. A bidirectional screw 9 is rotatably mounted inside the mounting rod 6. A screw tube 11 is rotatably mounted inside each set of first sliding rods 7. The two ends of the bidirectional screw 9 pass through the two sets of first sliding rods 7 and are threadedly connected to them respectively. The two sets of screw tubes 11 pass through the two sets of second sliding rods 8 and are threadedly connected to them respectively. The rod 8 is threaded, and the bidirectional screw 9 has two sets of symmetrically distributed keyways 10. Each of the two sets of screw tubes 11 has two sets of symmetrically distributed key blocks 12, with the key blocks 12 corresponding to the keyways 10. Both sets of screw tubes 11 are slidably connected to the bidirectional screw 9 via the key blocks 12. The first double-rod cylinder 24 in the mounting frame 3 can adjust the distance between the two sets of first adjusting rods 22 and second adjusting rods 23, thereby adjusting the distance between the four sets of limiting rods 21. When the bidirectional screw 9 in the mounting rod 6 in the mounting bracket 4 rotates, the two sets of first sliding rods 7 slide synchronously inward or outward under the limiting action of the mounting rod 6. Under the limiting action of the key blocks 12 and keyways 10, the screw tubes 11 that slide with the first sliding rods 7 rotate simultaneously with the bidirectional screw 9.Therefore, under the limiting action of the first slide bar 7, the two sets of second slide bars 8 are pushed synchronously inward or outward. The two sets of outer limiting frames 13 slide synchronously inward or outward with the second slide bars 8. With the first connecting rod 14 and the second connecting rod 16 distributed between the adjacent sets of limiting frames 13, the distance between the multiple sets of limiting frames 13 can be adjusted. With the four sets of limiting rods 21, the pre-filling of materials of different sizes and types can be realized. Simultaneously, the activation of the second double-rod cylinder 30 in the feeding frame 25 can adjust the distance between the two sets of first clamping rods 28 and the two sets of second clamping rods 29, thus realizing the adjustment of the distance between the four sets of receiving blocks 27. With the four sets of limiting rods 21, automatic feeding of materials of different sizes, types or kinds can be realized.

[0026] This utility model provides an auxiliary device for horizontal CT scanners. The specific working principle is as follows: Materials awaiting CT examination are placed between four sets of limiting rods 21 under the mounting frame 3. Adjacent materials are separated by limiting frames 13 and limiting plates 17. When the feeding rack 25 is directly below the four sets of limiting rods 21, four sets of receiving blocks 27 are distributed correspondingly to the four sets of limiting rods 21. The cylinder 20 in the limiting frame 13 above the feeding rack 25 starts, driving the rack 19 to slide, which, in conjunction with the gear 18, causes the limiting plates 17 to rotate. After the two sets of limiting plates 17 rotate synchronously, the materials above the limiting plates 17 lose external support and fall directly onto the four sets of receiving blocks on the feeding rack 25. On the 27, the rotation of the second lead screw 26 in the fixed frame 1, in conjunction with the limiting action of the fixed frame 1, enables the feeding frame 25 to slide the material on the fixed frame 1, automatically completing the feeding of material into the CT scanner 2. After the detection is completed, the feeding frame 25 drives the material away from the CT scanner 2, and the four sets of receiving blocks 27 move outward synchronously to complete the automatic discharge of the material. Then the feeding frame 25 returns to the position corresponding to the mounting frame 3, and the two sets of mounting frames 4 slide down a certain distance synchronously on the fixed frame 1 to complete the smoothing of the material located between the four sets of limiting rods 21 and above the multiple sets of limiting plates 17, so as to realize the next automatic feeding. The spacing between the two sets of mounting frames 4 is wide. The length of the feeding rack 25 does not affect the movement of the mounting frame 4. The first double-rod cylinder 24 in the mounting frame 3 can adjust the distance between the two sets of first adjusting rods 22 and second adjusting rods 23, thereby adjusting the distance between the four sets of limiting rods 21. When the bidirectional screw 9 in the mounting rod 6 inside the mounting frame 4 rotates, the two sets of first sliding rods 7 slide synchronously inward or outward under the limiting action of the mounting rod 6. Under the limiting action of the key block 12 and the keyway 10, the screw tube 11 that slides with the first sliding rod 7 rotates simultaneously with the bidirectional screw 9. Therefore, under the limiting action of the first sliding rod 7, the two sets of second sliding rods 8 can be moved synchronously inward or outward. Pushing, the two outer sets of limiting frames 13 slide inward or outward synchronously with the second sliding rod 8. With the first connecting rod 14 and the second connecting rod 16 distributed between the adjacent sets of limiting frames 13, the distance between the multiple sets of limiting frames 13 can be adjusted. With the four sets of limiting rods 21, the pre-filling of materials of different sizes and types can be realized. Simultaneously, the activation of the second double rod cylinder 30 in the feeding frame 25 can adjust the distance between the two sets of first clamping rods 28 and the two sets of second clamping rods 29, thus realizing the adjustment of the distance between the four sets of receiving blocks 27. With the four sets of limiting rods 21, the automatic feeding of materials of different sizes, types or kinds can be realized.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for horizontal CT, comprising a fixation frame (1) and a CT scanner (2), characterized in that: A mounting frame (3) is fixedly installed on the fixed frame (1). Two sets of symmetrically distributed mounting frames (4) are slidably installed on the fixed frame (1). A feeding frame (25) is slidably installed on the fixed frame (1). The feeding frame (25) is distributed correspondingly to the mounting frame (3) and the CT scanner (2). Two sets of symmetrically distributed first lead screws (5) are rotatably installed on the fixed frame (1). The two sets of first lead screws (5) pass through the two sets of mounting frames (4) and are threadedly connected to the corresponding mounting frames (4). Multiple sets of equidistantly distributed limiting frames (13) are provided inside the mounting frame (4). Each set of limiting frames (13) is rotatably installed with a limiting plate (17). A gear (18) is sleeved on the limiting plate (17). A rack (19) is slidably installed inside the limiting frame (13), and the rack (19) meshes with the gear (18). A cylinder (20) is fixedly installed inside the limiting frame (13), and the rack (19) is fixedly connected to the output end of the piston rod of the cylinder (20). Four sets of symmetrically distributed limiting rods (21) are provided inside the mounting frame (3). Four sets of symmetrically distributed receiving blocks (27) are provided inside the feeding frame (25). The four sets of receiving blocks (27) are respectively distributed corresponding to the limiting rods (21). Two sets of symmetrically distributed second lead screws (26) are rotatably installed on the fixed frame (1). The two sets of second lead screws (26) pass through both sides of the feeding frame (25) and are respectively threaded to the feeding frame (25).

2. The auxiliary device for horizontal CT according to claim 1, characterized in that: Two sets of symmetrically distributed first adjusting rods (22) are slidably installed in the mounting frame (3), and two sets of symmetrically distributed second adjusting rods (23) are slidably installed in the mounting frame (3). The two sets of first adjusting rods (22) and second adjusting rods (23) are perpendicularly distributed. The four sets of limiting rods (21) are slidably connected to one set of first adjusting rods (22) and one set of second adjusting rods (23) respectively.

3. The auxiliary device for horizontal CT according to claim 2, characterized in that: A first double-rod cylinder (24) is provided between each of the two sets of first adjusting rods (22) and second adjusting rods (23). The two sets of first adjusting rods (22) and second adjusting rods (23) are respectively fixedly connected to the output end of the piston rod of the corresponding first double-rod cylinder (24).

4. The auxiliary device for horizontal CT according to claim 1, characterized in that: Two sets of symmetrically distributed first clamping rods (28) are slidably installed inside the feeding rack (25), and two sets of symmetrically distributed second clamping rods (29) are slidably installed inside the feeding rack (25). The second clamping rods (29) are perpendicular to the first clamping rods (28). The four sets of receiving blocks (27) are slidably connected to one set of first clamping rods (28) and one set of second clamping rods (29) respectively. A second double-rod cylinder (30) is provided between the two sets of first clamping rods (28) and second clamping rods (29). The first clamping rods (28) and second clamping rods (29) are fixedly connected to the output end of the piston rod of the second double-rod cylinder (30) respectively.

5. The auxiliary device for horizontal CT according to claim 1, characterized in that: An installation rod (6) is fixedly installed inside the mounting bracket (4). Two sets of symmetrically distributed first slide rods (7) are slidably installed inside the installation rod (6). A second slide rod (8) is slidably installed inside each set of first slide rods (7). The ends of the two sets of second slide rods (8) away from the installation rod (6) are respectively fixedly connected to two sets of limiting brackets (13) located on both sides. Two sets of intersecting first connecting rods (14) and two sets of intersecting second connecting rods (16) are provided between each pair of adjacent limiting brackets (13). Each of the first connecting rods (14) has a slider (15) rotatably mounted on its left end. The two sets of sliders (15) are slidably connected to the corresponding limit frame (13). The right ends of the two sets of first connecting rods (14) are rotatably connected by a rotating shaft. The left ends of the two sets of second connecting rods (16) are rotatably connected by a rotating shaft. The right ends of the two sets of second connecting rods (16) are rotatably connected to the corresponding limit frame (13) by a rotating shaft. The first connecting rod (14) and the second connecting rod (16) are rotatably connected by a rotating shaft.

6. The auxiliary device for horizontal CT according to claim 5, characterized in that: A bidirectional screw (9) is rotatably installed inside the mounting rod (6), and a screw tube (11) is rotatably installed inside each of the two sets of first slide rods (7). The two ends of the bidirectional screw (9) pass through the two sets of first slide rods (7) respectively and are threadedly connected to the two sets of first slide rods (7). The two sets of screw tubes (11) pass through the two sets of second slide rods (8) respectively and are threadedly connected to the second slide rods (8).

7. The auxiliary device for horizontal CT according to claim 6, characterized in that: The bidirectional screw (9) has two sets of symmetrically distributed keyways (10), and each of the two sets of solenoids (11) has two sets of symmetrically distributed key blocks (12). The key blocks (12) are correspondingly arranged with the keyways (10), and the two sets of solenoids (11) are slidably connected to the bidirectional screw (9) through the key blocks (12).

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